Has he done his homewoke yet?Yes,he ____it an hour agoHas he done his homewoke yet?Yes,he _____it an hour agoA.has done B.does C.do D.didWhy?

问题描述:

Has he done his homewoke yet?Yes,he ____it an hour ago
Has he done his homewoke yet?Yes,he _____it an hour ago
A.has done B.does C.do D.did
Why?

D 时态一致